prosody
9dc34e1556d9
spec/util_interpolation_spec.lua

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spec/util_interpolation_spec.lua @ 10911:9dc34e1556d9

util.human.io.table: Allow a map callaback per column This allows e.g. mapping booleans to "yes" or "no", specific number formatting or generating virtual columns. All while not mutating the underlying data or creating additional temporary tables.
author Kim Alvefur <zash@zash.se>
date Thu, 04 Jun 2020 21:32:28 +0200
parent 10413:604096ce2f82
child 11064:af1e3b7d9ea3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local template = [[
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2 {greet!?Hi}, {name?world}!
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3 ]];
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4 local expect1 = [[
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5 Hello, WORLD!
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6 ]];
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7 local expect2 = [[
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8 Hello, world!
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9 ]];
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10 local expect3 = [[
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11 Hi, YOU!
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12 ]];
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13 local template_array = [[
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14 {foo#{idx}. {item}
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15 }]]
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16 local expect_array = [[
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17 1. HELLO
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18 2. WORLD
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19 ]]
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20 local template_func_pipe = [[
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21 {foo|sort#{idx}. {item}
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22 }]]
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23 local expect_func_pipe = [[
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24 1. A
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25 2. B
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26 3. C
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27 4. D
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28 ]]
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29 local template_map = [[
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30 {foo%{idx}: {item!}
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31 }]]
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32 local expect_map = [[
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33 FOO: bar
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34 ]]
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35
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36 describe("util.interpolation", function ()
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37 it("renders", function ()
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38 local render = require "util.interpolation".new("%b{}", string.upper, { sort = function (t) table.sort(t) return t end });
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39 assert.equal(expect1, render(template, { greet = "Hello", name = "world" }));
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40 assert.equal(expect2, render(template, { greet = "Hello" }));
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41 assert.equal(expect3, render(template, { name = "you" }));
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42 assert.equal(expect_array, render(template_array, { foo = { "Hello", "World" } }));
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43 assert.equal(expect_func_pipe, render(template_func_pipe, { foo = { "c", "a", "d", "b", } }));
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44 -- assert.equal("", render(template_func_pipe, { foo = nil })); -- FIXME
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45 assert.equal(expect_map, render(template_map, { foo = { foo = "bar" } }));
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46 end);
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47 end);